Stage: 4 and 5

Sea ice covers around 7% of the surface of our planet. This article explores how researchers use mathematical models to study the changes taking place in the polar seas and how these might affect the. . . .

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities
can be found here.